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Lisa [10]
3 years ago
15

Directions:

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
1. The first angle is a supplementary angle , which equals to 180 degrees.

2. The second angle is a complementary angle which is 90 degrees.

hope this helps !
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The proportion of a population with a characteristic of interest is p = 0.37. What is the standard deviation of the sampling dis
lukranit [14]

The standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 is equal to 0.0121.

<h3>What is a sample proportion?</h3>

A sample proportion can be defined as the proportion of individuals in a sample that have a specified characteristic or trait.

Mathematically, sample proportion can be calculated by using this formula:

\hat{p} = \frac{x}{n}

Where:

  • x represent the number of individuals with a specified characteristic.
  • n represent the total number of individuals in a sample.

In Mathematics, the standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 can be calculated by using this formula:

Standard deviation (SD) = √(p(1 - p)/n)

Substituting the given parameters into the formula, we have;

Standard deviation (SD) = √(0.37(1 - 0.37)/1,600)

Standard deviation (SD) = √(0.37(0.63)/1,600)

Standard deviation (SD) = √(0.2331)/1,600)

Standard deviation (SD) = √0.0001457

Standard deviation (SD) = 0.0121.

Read more on standard deviation here: brainly.com/question/14467769

#SPJ1

8 0
1 year ago
Use the drop-down menus to choose steps in order to correctly solve 4k−6=−2k−16−2 please help just need steps
luda_lava [24]
4k-6=-2k-16-2
4k-6=-2k-18
6k-6=-18
6k=-12
k=-2
3 0
3 years ago
There are 4 red marbles and 8 green marbles in a box. If Emma randomly selects a marble from the box, what is the probability of
murzikaleks [220]

Answer:

The probability of a successful event is the ratio of the number of successful events to the total number of events. In this case, a successful event is selecting a red marble from the box. The total number of events is the total number of marbles in the box:

Red marbles/Total number of marbles

4/12 divide

=1/3

3 0
3 years ago
Lawrence bought 2/3 pound of roast beef. He used 3/4 of it to make a sandwich. How much roast beef did Lawrence use for his sand
laila [671]
You multiply 3/4 by 2/3 it equals 2/4 which equals 1/2. The answer is 1/2.
3 0
3 years ago
Read 2 more answers
A pouch contains 6 red marbles and 2 blue marbles. A second pouch contains 3 red marbles and 7 blue marbles. A marble will be dr
aksik [14]

Answer:

2/8

Step-by-step explanation:

because there are 2 blue marbles

add those up with the red marbles(6) and you get 8 marbles. But the chance for picking up a blue marble would be 2/8

4 0
3 years ago
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